title: Framework isomers controlled by the speed of crystallization: different aggregation fashions of Zn(II) and 1,2,4-triazol-3-amine, distinct (3,4)-connected self-penetrating nets, and various pore shapes.
abstract: In this work, we report two exceptional framework isomers, Zn(L)(bdc)(0.5)·0.25H2O (1, HL = 1,2,4-triazol-3-amine, H2bdc = terephthalic acid) and Zn(L)(bdc)(0.5)·0.17H2O (2), where their formation is controlled by different speeds of crystallization. Further structural studies reveal that this operation of controlling the speed of crystallization may play a profound role in determining the aggregation fashions of Zn(II) ions and L(-) ligands, resulting in the various layers, viz. a 4·8(2) net vs. a 4·6·12 net. Importantly, this work also presents two previously unobserved (3,4)-connected self-penetrating matrixes.
authors.affiliation: College of Biology, Chemistry and Material Science, East China Institute of Technology, Fuzhou 344000, Jiangxi, China. mbluo@ecit.cn ecitluofeng@163.com.
authors.forename: Ming-Biao
authors.initials: MB
authors.lastname: Luo
authors.forename: Zi-Zun
authors.initials: ZZ
authors.lastname: Yuan
authors.forename: Wen-Yuan
authors.initials: WY
authors.lastname: Xu
authors.forename: Feng
authors.initials: F
authors.lastname: Luo
authors.forename: Jian-Qiang
authors.initials: JQ
authors.lastname: Li
authors.forename: Yan
authors.initials: Y
authors.lastname: Zhu
authors.forename: Xue-Feng
authors.initials: XF
authors.lastname: Feng
authors.forename: Shu-Juan
authors.initials: SJ
authors.lastname: Liu